ATA acquired a couple of ex-LTU TriStars in 1995/96 and used them for a short time period on their network, which includes flights to Ireland. The TriStars did not get repainted and carried small ATA titles hastily applied over the basic LTU colorscheme. These L1011's were retired one or two years later.
Please take a note of this picture, it shows one of the aircraft at LAS:
Homer: Facts are meaningless. You could use facts to prove anything that's even remotely true!